Whir of Invention [Aether Revolt Prerelease Promos]

Whir of Invention [Aether Revolt Prerelease Promos]Set: Aether Revolt Prerelease Promos Type: Instant Rarity: Rare Cost: {X}{U}{U}{U} Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for {1}.) Search your library for an artifact card with mana value X or less, put it onto the battlefield, then shuffle.

For each permanent destroyed this way

"The so-called Barbarians will not respect us for our military might—they will respect us for our honor

Maro-Sorcerer's power and toughness are each equal to the total number of cards in all players' hands

"It has latched onto this place like an infestation

Set: Revised Edition Type: Land — Island Swamp Rarity: Rare ({T}: Add {U} or {B}

"Hard to imagine

Set: Masters 25 Type: Artifact Rarity: Mythic Cost: {X}{X} Chalice of the Void enters the battlefield with X charge counters on it

Set: Beta Edition Type: Creature — Human Knight Rarity: Uncommon Cost: {B}{B} First strike (This creature deals combat damage before creatures without first strike

Set: Ice Age Type: Artifact Rarity: Uncommon Cost: {0} {1}

Set: Commander 2017 Type: Creature — Cat Warrior Rarity: Rare Cost: {4}{G} Reach

Set: Commander 2013 Type: Land Rarity: Rare {T}: Add {C}

Set: Antiquities Type: Artifact Rarity: Rare Cost: {1} {X}